/*
 * @(#)BrainwaveOscillator.java	1.0 Apr 26, 2008
 *
 *	The MIT License
 *
 *	Copyright (c) 2008 Malachi de AElfweald <malachid@gmail.com>
 *
 *	Permission is hereby granted, free of charge, to any person obtaining a copy
 *	of this software and associated documentation files (the "Software"), to deal
 *	in the Software without restriction, including without limitation the rights
 *	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 *	copies of the Software, and to permit persons to whom the Software is
 *	furnished to do so, subject to the following conditions:
 *
 *	The above copyright notice and this permission notice shall be included in
 *	all copies or substantial portions of the Software.
 *
 *	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 *	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 *	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 *	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 *	THE SOFTWARE.
 */
package org.eoti.sound;

public class BrainwaveOscillator
extends StereoOscillator
{
	protected BrainwaveOscillator(double freqL, double freqR)
	{
		super((int)freqL, (int)freqR);//should change StereoOscillator to take double instead of int
	}

	public static BrainwaveOscillator centered(double baseFrequency, Brainwave wave)
	{
		return new BrainwaveOscillator(baseFrequency, baseFrequency + wave.getMid());
	}

	public static BrainwaveOscillator bridge(double baseFrequency, Brainwave wave1, Brainwave wave2)
	{
		if(wave1.getStart() == wave2.getEnd())
			return new BrainwaveOscillator(baseFrequency, baseFrequency + wave1.getStart());

		if(wave1.getEnd() == wave2.getStart())
			return new BrainwaveOscillator(baseFrequency, baseFrequency + wave1.getEnd());

		return null;// can't bridge if they are not next to each other
	}

	public static BrainwaveOscillator centered(double baseFrequency, MentalState state)
	{
		for(Brainwave wave : Brainwave.values())
			if(wave.getState() == state)
				return centered(baseFrequency, wave);

		return null; // should never happen
	}

	public static BrainwaveOscillator bridge(double baseFrequency, MentalState state1, MentalState state2)
	{
		Brainwave wave1 = null;
		Brainwave wave2 = null;
		for(Brainwave wave: Brainwave.values())
		{
			if(wave.getState() == state1)
				wave1 = wave;
			else if(wave.getState() == state2)
				wave2 = wave;
		}

		return bridge(baseFrequency, wave1, wave2);
	}

	public static class Test
	{
		public static void main(String[] args)
		{
			try{
				BrainwaveOscillator lineIn = BrainwaveOscillator.centered(100, MentalState.Hypnotic);
				lineIn.play();
		    }catch(Exception e){
		    	System.out.println("Exception: " + e.getMessage());
		    	e.printStackTrace();
		    }
		}
	}
}